Reacting has always been a part of the baseball commissioner's job. Bud Selig, who has ruled during the so-called "Steroid Era," waited three days after Alex Rodriguez's admission he used banned substances to respond: The New York Yankees third baseman had "shamed the game."

Major League Baseball, which hoped to put an end to the steroid era with its drug-testing program and the commissioned Mitchell Report, instead enters spring training with yet another ominous cloud hovering.

Tom Tresh, the 1962 AL Rookie of the Year and part of three New York Yankees teams that reached the World Series, has died. He was 71. Tresh died Wednesday after a heart attack, according to the funeral home handling the arrangements.

The defense for Barry Bonds called one of the counts against the former slugger "fatally ambiguous" and questioned the prosecution's definition of steroids, according to documents filed in federal court this week.